It is a common fallacy that women are good at multitasking, and men are bad at it. The actual truth is, that men like to do things properly, so they do them one at a time and give them their full attention. Women on the other hand, are happy to do a half-assed job.

'What happened to your car?'
'oh, that. my wife was multitasking - parking and talking on the phone at the same time.'
'oh, well i hope it was an interesting conversation, because she parked a bollard into the side of the car.'
'no, she was talking to me on the phone, and she was really distracted by trying to park.'
'oh. how efficient.'